Background

I have an application that uses a queuing system, called jobs:

At its simplest:

> jobs.add_queue(:myqueue, [{:standard_rate, 10}])
> jobs.run(:myqueue, fn -> :httpc.request('https://www.elixirforum.com') end)

Makes at most 10 requests/sec.
As you will have noticed, before using the jobs.run I first need to run jobs.add_queue. This is a setup requirement.

Library

In the newest versions of elixir, when we create a project, it is a library, in the sense that it does not have an application.ex and it lacks a supervision tree (iirc).

So it is a simple functional library. So, what happens when you create new project (library) that has a dependency that needs setup?

Where to put setup?

The application.ex file is a nice place to put the setup of all your dependencies, however, by doing this you are forcing your project to have a supervision tree even if it does not need one, because it is a simple library with some side effects.

So, what do you do then? How do you guys fix this?